
// 第一个盒子
function fun1(){

    const xhttp = new XMLHttpRequest();
    // 发送请求
    xhttp.open("GET", "Login.html");
    xhttp.send();
    xhttp.onreadystatechange = function() {
        if (this.readyState == 4 && this.status == 200) {
            // this.responseText;
        }
    };
    let d= window.document.getElementsByClassName("boxa");
    d[0].classList.remove('show');
    d[0].classList.add("hide");
    d[0].style.overflowY="hidden";
    var demo = document.getElementsByClassName("text1");
    var demo = document.getElementsByClassName("text1");
    demo[0].value
}
function fun2(){
    window.onmousewheel = document.onmousewheel=function() {return true}
    let z= window.document.getElementsByClassName("boxa");
    z[0].classList.remove('hide');
    z[0].classList.add("show");
}
// 第二个盒子
function fun3(){
    const xhttp = new XMLHttpRequest();
    // 发送请求
    xhttp.open("GET", "Login.html");
    xhttp.send();
    xhttp.onreadystatechange = function() {
        if (this.readyState == 4 && this.status == 200) {
            // this.responseText;
        }
    };
    let d= window.document.getElementsByClassName("boxb");
    d[0].classList.remove('show');
    d[0].classList.add("hide");
}
function fun4(){
    let z= window.document.getElementsByClassName("boxb");
    z[0].classList.remove('hide');
    z[0].classList.add("show");
}
// 第三个盒子
function fun5(){
    const xhttp = new XMLHttpRequest();
    // 发送请求
    xhttp.open("GET", "Login.html");
    xhttp.send();
    xhttp.onreadystatechange = function() {
        if (this.readyState == 4 && this.status == 200) {
            // this.responseText;
        }
    };
    let d= window.document.getElementsByClassName("boxc");
    d[0].classList.remove('show');
    d[0].classList.add("hide");
}
function fun6(){
    let z= window.document.getElementsByClassName("boxc");
    z[0].classList.remove('hide');
    z[0].classList.add("show");
}